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http://dx.doi.org/10.7736/KSPE.2013.30.9.1001

Reducing Separation Force for Projection Stereolithography based on Constrained Surface Technique  

Kim, Hye Jung (Intelligent Control and Automation Division, Pusan National Univ.)
Ha, Young Myoung (School of Mechanical Engineering, Pusan National Univ.)
Park, In Baek (CA Tech Co.Ltd.)
Kim, Min Sub (Intelligent Control and Automation Division, Pusan National Univ.)
Jo, Kwang Ho (Intelligent Control and Automation Division, Pusan National Univ.)
Lee, Seok Hee (School of Mechanical Engineering, Pusan National Univ.)
Publication Information
Journal of the Korean Society for Precision Engineering / v.30, no.9, 2013 , pp. 1001-1006 More about this Journal
Abstract
Projection-based stereolithography is divided into constrained-surface and free-surface type according to controlling liquid layer. The constrained-surface type has a uniform layer thickness due to the use of a projection window, which covers the pattern generator such as liquid crystal display. However, the adhered resin on the projection window causes trouble and requires great separation force when the cured layer is separated from the window. To minimize the separation force, we developed a system to measure the separation force. The influence of material covering the pattern generator and the resin temperature is investigated in the system. Several structures according to the resin temperature and the velocity of z-axis elevation are compared. As a result, the fabrication condition to minimize the separation force reduces the process time.
Keywords
Rapid Prototyping; Stereolithography system; Constraint surface; Separation force;
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Times Cited By KSCI : 1  (Citation Analysis)
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1 Huang, Y. M. and Jiang, C. P., "On-line force monitoring of platform ascending rapid prototyping system," Journal of Material Processing Technology, Vol. 159, pp. 257-264, 2005.   DOI   ScienceOn
2 Azari, A. and Nikzad, S., "The evolution of rapid prototyping in dentistry: a review," Rapid Prototyping Journal, Vol. 15, No. 3, pp. 216-225, 2009.   DOI   ScienceOn
3 Hilton, P., "Making the leap to rapid tool making," Mechanical Engineering, Vol. 117, No. 7, pp. 75-76, 1995.
4 Ashley, S., "Rapid prototyping is coming of age," Mechanical Engineering, Vol. 117, No. 7, pp. 62-68, 1995.
5 Park, I. B., Choi, J. W., Ha, Y. M., and Lee, S. H., "Multiple Fabrications of Sacrificial Layers to Enhance the Dimensional Accuracy of Microstructures in Maskless Projection Microstereolithography," Int. J. Precis. Eng. Manuf., Vol. 10, No. 1, pp. 91-98, 2009.   과학기술학회마을   DOI   ScienceOn
6 Huang, Y.-M., Jeng, J.-Y., and Jiang, C.-P., "Increased accuracy by using dynamic finite element method in the constrain-surface stereolithography system," Journal of Material Technology, Vol. 140, No. 1, pp. 191-196, 2003.   DOI   ScienceOn
7 Roffey, C. G., "Photogeneration of Reactive Species for UV Curing," John Wiley & Sons. Ltd., 1997.
8 Hoyle, C. E. and Kinstle, J. F., "Radiation Curing of Polymeric Materials," American Chemical Society, pp. 82-567, 1988.
9 Lee, Y. M., Seo, D. H., and Kwon, S. G., "High Polymer Chemistry," SciTech Media. Inc., 2004.
10 Kruth, J. P., "Material Incress Manufacturing by Rapid Prototyping Techniques," CIRP Annals- Manufacturing Technology, Vol. 40, No. 2, pp. 603- 614, 1991.   DOI   ScienceOn
11 Kim, H. J., Park, I. B., and Lee, S. H., "A Study of precision release in stereolithography system using constrained surface," Proc. of KSPE Autumn Conference, pp. 369-370, 2012.